Change Image component lazy=true to loading=lazy #18138
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
styfle
requested review from
ijjk,
lfades,
Timer and
timneutkens
as code owners
styfle
changed the title
timneutkens
reviewed
Oct 22, 2020
This comment has been minimized.
This comment has been minimized.
This comment has been minimized.
This comment has been minimized.
This comment has been minimized.
This comment has been minimized.
24 tasks
This comment has been minimized.
This comment has been minimized.
ijjk
reviewed
Oct 22, 2020
ijjk
approved these changes
Oct 22, 2020
Stats from current PRDefault Server Mode (Increase detected
|
| vercel/next.js canary | vercel/next.js img-loading-lazy | Change | |
|---|---|---|---|
| buildDuration | 11.4s | 11.8s | |
| nodeModulesSize | 91.2 MB | 91.2 MB |
Page Load Tests Overall increase ✓
| vercel/next.js canary | vercel/next.js img-loading-lazy | Change | |
|---|---|---|---|
| / failed reqs | 0 | 0 | ✓ |
| / total time (seconds) | 2.229 | 2.206 | -0.02 |
| / avg req/sec | 1121.33 | 1133.17 | +11.84 |
| /error-in-render failed reqs | 0 | 0 | ✓ |
| /error-in-render total time (seconds) | 1.223 | 1.226 | 0 |
| /error-in-render avg req/sec | 2044.97 | 2039.29 |
Client Bundles (main, webpack, commons)
| vercel/next.js canary | vercel/next.js img-loading-lazy | Change | |
|---|---|---|---|
| 677f882d2ed8..574c.js gzip | 11.2 kB | 11.2 kB | ✓ |
| framework.HASH.js gzip | 39 kB | 39 kB | ✓ |
| main-de5d578..9aea.js gzip | 7.34 kB | 7.34 kB | ✓ |
| webpack-e067..f178.js gzip | 751 B | 751 B | ✓ |
| Overall change | 58.3 kB | 58.3 kB | ✓ |
Client Bundles (main, webpack, commons) Modern
| vercel/next.js canary | vercel/next.js img-loading-lazy | Change | |
|---|---|---|---|
| 677f882d2ed8..dule.js gzip | 7.02 kB | 7.02 kB | ✓ |
| framework.HA..dule.js gzip | 39 kB | 39 kB | ✓ |
| main-c22ffdd..dule.js gzip | 6.32 kB | 6.32 kB | ✓ |
| webpack-07c5..dule.js gzip | 751 B | 751 B | ✓ |
| Overall change | 53.1 kB | 53.1 kB | ✓ |
Legacy Client Bundles (polyfills)
| vercel/next.js canary | vercel/next.js img-loading-lazy | Change | |
|---|---|---|---|
| polyfills-4b..e242.js gzip | 31 kB | 31 kB | ✓ |
| Overall change | 31 kB | 31 kB | ✓ |
Client Pages
| vercel/next.js canary | vercel/next.js img-loading-lazy | Change | |
|---|---|---|---|
| _app-9a0b9e1..b37e.js gzip | 1.28 kB | 1.28 kB | ✓ |
| _error-ed1b0..8fbd.js gzip | 3.44 kB | 3.44 kB | ✓ |
| hooks-89731c..c609.js gzip | 887 B | 887 B | ✓ |
| index-17468f..5d83.js gzip | 227 B | 227 B | ✓ |
| link-41ceea0..6b62.js gzip | 1.35 kB | 1.35 kB | ✓ |
| routerDirect..924c.js gzip | 284 B | 284 B | ✓ |
| withRouter-7..c13d.js gzip | 284 B | 284 B | ✓ |
| Overall change | 7.75 kB | 7.75 kB | ✓ |
Client Pages Modern
| vercel/next.js canary | vercel/next.js img-loading-lazy | Change | |
|---|---|---|---|
| _app-75d3a82..dule.js gzip | 625 B | 625 B | ✓ |
| _error-4469a..dule.js gzip | 2.29 kB | 2.29 kB | ✓ |
| hooks-cbf13f..dule.js gzip | 387 B | 387 B | ✓ |
| index-b9a643..dule.js gzip | 226 B | 226 B | ✓ |
| link-2d41a89..dule.js gzip | 1.31 kB | 1.31 kB | ✓ |
| routerDirect..dule.js gzip | 284 B | 284 B | ✓ |
| withRouter-f..dule.js gzip | 282 B | 282 B | ✓ |
| Overall change | 5.4 kB | 5.4 kB | ✓ |
Client Build Manifests
| vercel/next.js canary | vercel/next.js img-loading-lazy | Change | |
|---|---|---|---|
| _buildManifest.js gzip | 323 B | 323 B | ✓ |
| _buildManife..dule.js gzip | 329 B | 329 B | ✓ |
| Overall change | 652 B | 652 B | ✓ |
Rendered Page Sizes
| vercel/next.js canary | vercel/next.js img-loading-lazy | Change | |
|---|---|---|---|
| index.html gzip | 1 kB | 1 kB | ✓ |
| link.html gzip | 1.01 kB | 1.01 kB | ✓ |
| withRouter.html gzip | 993 B | 993 B | ✓ |
| Overall change | 3 kB | 3 kB | ✓ |
Serverless Mode
General Overall increase ⚠️
| vercel/next.js canary | vercel/next.js img-loading-lazy | Change | |
|---|---|---|---|
| buildDuration | 14s | 13.7s | -324ms |
| nodeModulesSize | 91.2 MB | 91.2 MB |
Client Bundles (main, webpack, commons)
| vercel/next.js canary | vercel/next.js img-loading-lazy | Change | |
|---|---|---|---|
| 677f882d2ed8..574c.js gzip | 11.2 kB | 11.2 kB | ✓ |
| framework.HASH.js gzip | 39 kB | 39 kB | ✓ |
| main-de5d578..9aea.js gzip | 7.34 kB | 7.34 kB | ✓ |
| webpack-e067..f178.js gzip | 751 B | 751 B | ✓ |
| Overall change | 58.3 kB | 58.3 kB | ✓ |
Client Bundles (main, webpack, commons) Modern
| vercel/next.js canary | vercel/next.js img-loading-lazy | Change | |
|---|---|---|---|
| 677f882d2ed8..dule.js gzip | 7.02 kB | 7.02 kB | ✓ |
| framework.HA..dule.js gzip | 39 kB | 39 kB | ✓ |
| main-c22ffdd..dule.js gzip | 6.32 kB | 6.32 kB | ✓ |
| webpack-07c5..dule.js gzip | 751 B | 751 B | ✓ |
| Overall change | 53.1 kB | 53.1 kB | ✓ |
Legacy Client Bundles (polyfills)
| vercel/next.js canary | vercel/next.js img-loading-lazy | Change | |
|---|---|---|---|
| polyfills-4b..e242.js gzip | 31 kB | 31 kB | ✓ |
| Overall change | 31 kB | 31 kB | ✓ |
Client Pages
| vercel/next.js canary | vercel/next.js img-loading-lazy | Change | |
|---|---|---|---|
| _app-9a0b9e1..b37e.js gzip | 1.28 kB | 1.28 kB | ✓ |
| _error-ed1b0..8fbd.js gzip | 3.44 kB | 3.44 kB | ✓ |
| hooks-89731c..c609.js gzip | 887 B | 887 B | ✓ |
| index-17468f..5d83.js gzip | 227 B | 227 B | ✓ |
| link-41ceea0..6b62.js gzip | 1.35 kB | 1.35 kB | ✓ |
| routerDirect..924c.js gzip | 284 B | 284 B | ✓ |
| withRouter-7..c13d.js gzip | 284 B | 284 B | ✓ |
| Overall change | 7.75 kB | 7.75 kB | ✓ |
Client Pages Modern
| vercel/next.js canary | vercel/next.js img-loading-lazy | Change | |
|---|---|---|---|
| _app-75d3a82..dule.js gzip | 625 B | 625 B | ✓ |
| _error-4469a..dule.js gzip | 2.29 kB | 2.29 kB | ✓ |
| hooks-cbf13f..dule.js gzip | 387 B | 387 B | ✓ |
| index-b9a643..dule.js gzip | 226 B | 226 B | ✓ |
| link-2d41a89..dule.js gzip | 1.31 kB | 1.31 kB | ✓ |
| routerDirect..dule.js gzip | 284 B | 284 B | ✓ |
| withRouter-f..dule.js gzip | 282 B | 282 B | ✓ |
| Overall change | 5.4 kB | 5.4 kB | ✓ |
Client Build Manifests
| vercel/next.js canary | vercel/next.js img-loading-lazy | Change | |
|---|---|---|---|
| _buildManifest.js gzip | 323 B | 323 B | ✓ |
| _buildManife..dule.js gzip | 329 B | 329 B | ✓ |
| Overall change | 652 B | 652 B | ✓ |
Serverless bundles
| vercel/next.js canary | vercel/next.js img-loading-lazy | Change | |
|---|---|---|---|
| _error.js | 1.06 MB | 1.06 MB | ✓ |
| 404.html | 4.73 kB | 4.73 kB | ✓ |
| hooks.html | 3.92 kB | 3.92 kB | ✓ |
| index.js | 1.06 MB | 1.06 MB | ✓ |
| link.js | 1.1 MB | 1.1 MB | ✓ |
| routerDirect.js | 1.1 MB | 1.1 MB | ✓ |
| withRouter.js | 1.1 MB | 1.1 MB | ✓ |
| Overall change | 5.42 MB | 5.42 MB | ✓ |
Sign up for free
to subscribe to this conversation on GitHub.
Already have an account?
Sign in.
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This PR updates the
<Image>component to follow the same property naming as native<img>.https://developer.mozilla.org/en-US/docs/Web/HTML/Element/Img#attr-loading
This currently allows two values,
loading=lazyandloading=eager, but there might be new values added in a future spec.cc @atcastle